Back to Search
Start Over
Self‐Assembly Strategy for Constructing Porous Boron and Nitrogen Co‐Doped Carbon as an Efficient ORR Electrocatalyst toward Zinc‐Air Battery.
- Source :
-
Chemistry - A European Journal . 5/17/2024, Vol. 30 Issue 28, p1-7. 7p. - Publication Year :
- 2024
-
Abstract
- Carbon nanomaterials doped with N and B could activate nearby carbon atoms to promote charge polarization through the synergistic coupling effect between N and B atoms, thus facilitating adsorption of O2 and weakening O−O bond to enhance oxygen reduction reaction. Herein, a simple and controllable self‐assembly strategy is applied to synthesize porous B, N co‐doped carbon‐based catalysts (BCN‐P), which employs the macrocyclic molecule cucurbit[7]uril (CB7) as nitrogen source, and 3D aromatic‐like closo‐[B12H12]2− as boron source. In addition, polystyrene microspheres are added to help introduce porous structure to expose more active sites. Benefitting from porous structures and the synergistic coupling effect between N and B atoms, BCN‐P has a high onset potential (Eonset=0.846 V) and half‐wave potential (E1/2=0.74 V) in alkaline media. The zinc‐air battery assembled with BCN‐P shows high operating voltage (1.42 V), peak power density (128.7 mW cm−2) and stable charge/discharge cycles, which is even comparable with Pt/C. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09476539
- Volume :
- 30
- Issue :
- 28
- Database :
- Academic Search Index
- Journal :
- Chemistry - A European Journal
- Publication Type :
- Academic Journal
- Accession number :
- 177321637
- Full Text :
- https://doi.org/10.1002/chem.202400252